White patches on the face of small children may be caused by white furfura, vitiligo, anemic nevi, florid furfura and other diseases. 1. White furfur: the cause is not clear, may be related to sun exposure, infection, vitamin deficiency, dry skin and other factors. Patients will first appear local erythema, with the development of time subsides, leaving pale color spots, common in the face. 2. Vitiligo: the cause may be related to heredity, immune system disorders and other factors. The patient’s skin will appear white spots, mostly on the face, back of the hands, abdomen and so on. 3. Anemic nevus: the cause is mainly related to the developmental defect of vascular tissue. Patients will have single or multiple irregular pale white spots locally, which can be seen on the chest and back, face, limbs and other parts of the body, and are common in childhood or at birth. 4. maculopapular furuncle: the cause of the disease is mainly due to Malassezia infection, genetic and environmental factors may also induce the disease. The patient will appear localized spot rash, with the development of time gradually fused into a piece, usually white, light red, etc., can be seen in the face, shoulders and so on. Children with white patches on the face has more causes, you can go to the regular hospital to consult the examination, to clarify the cause of the disease.